cb5414 Update `manual-index.texinfo' template file used to build manuals

Authored and Committed by areguera 13 years ago
    Update `manual-index.texinfo' template file used to build manuals
    written in texinfo format:
    
        - Start `@syncodeindex' to merge `fn', `ky', `pg', `tp', and `vr'
          index definitions into `cp' index. Then, print `cp' index.